routing problem

[Chan Kwang Mien <Kwang-Mien.Chan.GP@icn.siemens.de>]

hi there,

   i have this LAN topology.


       -----------------
        |    |    |    | 
       a   b   c   d
                      |
		   e

     Node a is sending data to Node e. Packets from Node a will pass through
Node d then to Node e.
     is it possible to let the packets from Node a to go to Node b first so
that Node b can do some processing. Node b then send the packets to Node d
and finally to Node e.

     i tried using the add-route command to configure Node a to have a route
to Node b. however, it does not seem to 
work cos packets are still forwarded to Node d.
 
     thanks.

rgds,
kwang mien